Quality Insulation | Est. 1996

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Our Thermobead Injected wall cavity system is offered as the best solution for block construction, whether in a new build or an upgrade. We offer a complete energy service to our customers, whether you are a homeowner or a contractor.

  • Consistent high performance bead (manufactured in-house)
  • Suitable for cavities from 40mm upwards
  • Independently assessed installation crews
  • Up to 20% better than conventional systems

Thermobead Injected Cavity Wall Bead System

Dungarvan Insulation also offers a certified energy assessment for your new or existing home. Our installation teams will, at an agreed time, install the system with no waste and no extra cost. We can inject high quality bead into your cavity walls to keep your home warmer and more fuel efficient in winter months. The ability of the bead to flow under applied pressure through the drilled 22mm holes means it fills every void- producing a complete fill every time, with no cold spots.

We can drill from either the inside (new build) or outside (existing) using a drilling pattern to insure no areas are missed. As a result, whether your house was built with a 50mm cavity or you want to build with a 200mm cavity to create a low energy house then we can meet your needs. We even supply the wall ties to suit.

Using the highest quality raw materials and the best bonding agent available – We will consistently deliver a high performance cavity bead system, giving a performance up to 20% better than conventional bead insulation.

Dungarvan Insulation can meet all your energy requirement targets. We also offer BER (Building Energy Rating)- a legal requirement since January ’07.

Reg No: IAB/0320/126

Agrement Cert No: 08/0320

Thermal performance

The Blown Loft Insulation we use has a thermal conductivity of 0.045W/mK U-values based on 6.3% bridging, 38mm x 100mm @ 600ctrs.
Acoustic Performance

Blown Loft Insulation can improve the sound insulation of a building. 250mm of Blown Loft Insulation, with an isolated 12.5mm suspended plasterboard ceiling, achieves >50dB airbourne sound reduction in a tiled roof construction.
A typical tiled roof construction incorporating a plasterboard ceiling and insulation should achieve an airbourne sound reduction of approximately 31dB.


Blown Loft Insulation is a durable material. When installed it will not be affected by normal ventilation within the loft space and will remain an effective insulant for the lifetime of the building.

Because of it's density, Blown Loft Insulation will not suffer from wind displacement via air movement.

Blown Loft Insulation is a completely inert, rot-proof material and does not encourage the growth of fungi, moulds and bacterial or offer sustenance to vermin.

To request a free Insulation Quote, or to contact us via e-mail, please complete the form below and we will be in contact with you shortly.

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